Espirare MAX has a Clean Air Delivery Rate of 400 cubic metres per hour. It has a maximum effective area of 145 m2. The recommended area is 50 m2.
Espirare ION has a Clean Air Delivery Rate of 90 cubic metres per hour. It has a maximum effective area of 32 m2. The recommended area is 11 m2.
The maximum effective area is the area that the purifier is capable of purifying in one hour.
The recommended area is the area that the purifier is capable of purifying 3 times per hour.